def __init__(self, name, controller):
'''
Initialise comms thread and setup serial
'''
comms.interface.interface.__init__(self, name, controller)
section = 'Comms_Serial'
s = self._settings
s.port = config.get(section, 'port')
s.baudrate = int(config.get(section, 'baudrate'))
s.bytesize = int(config.get(section, 'bytesize'))
s.parity = config.get(section, 'parity')
s.stopbits = int(config.get(section, 'stopbits'))
s.timeout = int(config.get(section, 'timeout'))
s.xonxoff = config.getBool(section, 'xonxoff')
s.rtscts = config.getBool(section, 'rtscts')
# Process data
# Cast a numeric port identifier to an int
try:
s.port = int(s.port)
except ValueError:
# Wasn't numerical, pass
pass
s.parity = s.parity[0:1]
# Load protocol
self.getProtocol()
self.start()
def _actionLog(self, data):
'''
Sends log message to appropriate handler
'''
if self.log_verboseness == None:
# Config has not yet been loaded
self.log_verboseness = self.log_levels[config.get('Logging', 'verboseness')]
self.log_to_file = config.getBool('Logging', 'to_file')
self.log_to_terminal = config.getBool('Logging', 'to_terminal')
if self.log_levels[data[2]] < self.log_verboseness:
# Not logging this level message
return
if self.log_to_file:
self._actionLogFile(data)
if self.log_to_terminal:
self._actionLogTerminal(data)
def __init__(self, name, controller):
'''
Initialise comms thread and setup serial
'''
comms.interface.interface.__init__(self, name, controller)
section = 'Comms_Serial'
s = self._settings
s.port = config.get(section, 'port')
s.baudrate = int(config.get(section, 'baudrate'))
s.bytesize = int(config.get(section, 'bytesize'))
s.parity = config.get(section, 'parity')
s.stopbits = int(config.get(section, 'stopbits'))
s.timeout = int(config.get(section, 'timeout'))
s.xonxoff = config.getBool(section, 'xonxoff')
s.rtscts = config.getBool(section, 'rtscts')
s.parity = s.parity[0:1]
# Load protocol
self.getProtocol()
self.start()
def run(self):
'''
Perform controller logic
'''
# Check config regarding logging queue sizes
log_actions = False
if config.getBool('Logging', 'log_queues'):
log_actions = True
# Queue sizes (for logging)
actionQueueSize = 0
actionQueueLowPrioritySize = 0
actionQueueBlockingSize = 0
# Continue running until no other threads are left except
# this one and the main thread
while threading.activeCount() > 2:
# If no actions in queue, block
if not self._actionQueue:
self._checkBlock()
# Loop through actions
while self._actionQueue or self._actionQueueLowPriority or self._actionQueueBlocking:
# Log the size of the queues if they have changed
if log_actions:
if actionQueueSize != len(self._actionQueue) or actionQueueLowPrioritySize != len(self._actionQueueLowPriority) or actionQueueBlockingSize != len(self._actionQueueBlocking):
self._log('DEBUG', 'Size of action queues, blocking: %s, actions: %s, low-priority: %s' %
(len(self._actionQueueBlocking), len(self._actionQueue), len(self._actionQueueLowPriority)))
actionQueueSize = len(self._actionQueue)
actionQueueLowPrioritySize = len(self._actionQueueLowPriority)
actionQueueBlockingSize = len(self._actionQueueBlocking)
# Actions in _actionQueueBlocking are top priority so always
# get done before low priority actions
if self._actionQueueBlocking:
queue = self._actionQueueBlocking
if log_actions:
actionQueueBlockingSize -= 1
elif self._actionQueue:
queue = self._actionQueue
if log_actions:
actionQueueSize -= 1
else:
queue = self._actionQueueLowPriority
if log_actions:
actionQueueLowPrioritySize -= 1
# Grab oldest action in queue
action = queue.pop(0)
# Split data into relevant chunks
if len(action) == 3:
(action, data, block_id) = action
else:
block_id = None
(action, data) = action
# Log action
#if action != 'Log':
# self._log('DEBUG', 'Performing %s action' % action)
# Check where action is located
if '.' in action:
# Run method in action module
loc = action.rfind('.')
module = action[0:loc]
method = action[loc+1:]
action_method = getattr(__import__(module, globals(), locals(), 'actions'), 'actions')
result = getattr(action_method, method)(self, data).run()
else:
# Run actions internal method
action = '_action'+action
result = getattr(self, action)(data)
# Save result and release lock for blocking actions
if block_id:
self._actionBlockingData[block_id] = result
self._actionBlockingBlocks[block_id].set()
# Print one last log message instead of running _final()
# like other threads, which would just create a log action
# that would never got run
self._log('DEBUG', 'Shutting down controller thread')
